CVE-2020-5665

CVE-2020-5665

EPSS 1.0%

Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) CPU unit firmware version 1.060 and earlier allows an attacker to cause a denial-of-service (DoS) condition on program execution and communication by sending a specially crafted ARP packet.

Affected products

Mitsubishi Electric Corporation · MELSEC iQ-F series FX5U(C) CPU unit

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References

https://jvn.jp/vu/JVNVU95638588/index.html https://us-cert.cisa.gov/ics/advisories/icsa-20-345-01 https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-018.pdf https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-018_en.pdf